Rework permissions formatting in galenectl.

Author: jech

galenectl/galenectl.go

@@ -681,6 +681,29 @@ func parsePermissions(p string, expand bool) (any, error) {
 	return pp.Permissions(nil), nil
 }
 
+func formatRawPermissions(permissions []string) string {
+	var perms []byte
+	for _, p := range permissions {
+		if len(p) > 0 {
+			perms = append(perms, p[0])
+		} else {
+			perms = append(perms, '?')
+		}
+	}
+	sort.Slice(perms, func(i, j int) bool {
+		return perms[i] < perms[j]
+	})
+	return fmt.Sprintf("[%s]", perms)
+}
+
+func formatPermissions(permissions group.Permissions) string {
+	s := permissions.String()
+	if len(s) > 0 && s[0] != '[' {
+		return s
+	}
+	return formatRawPermissions(permissions.Permissions(nil))
+}
+
 func listUsersCmd(cmdname string, args []string) {
 	var groupname string
 	var long bool
@@ -732,7 +755,9 @@ func listUsersCmd(cmdname string, args []string) {
 				fmt.Printf("%-12s (ERROR=%v)\n", user, err)
 				continue
 			}
-			fmt.Printf("%-12s %v\n", user, d.Permissions)
+			fmt.Printf("%-12s %v\n",
+				user, formatPermissions(d.Permissions),
+			)
 		}
 	}
 }

galenectl/galenectl_test.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"encoding/json"
 	"testing"
 
 	"github.com/jech/galene/group"
@@ -38,3 +39,29 @@ func TestMakePassword(t *testing.T) {
 		t.Errorf("Wildcard didn't match")
 	}
 }
+
+func TestFormatPermissions(t *testing.T) {
+	tests := []struct{ j, v, p string }{
+		{`"op"`, "op", "[mopt]"},
+		{`"present"`, "present", "[mp]"},
+		{`"observe"`, "observe", "[]"},
+		{`"admin"`, "admin", "[a]"},
+		{`["message", "present", "token"]`, "[mpt]", "[mpt]"},
+	}
+	for _, test := range tests {
+		var p group.Permissions
+		err := json.Unmarshal([]byte(test.j), &p)
+		if err != nil {
+			t.Errorf("Unmarshal %#v: %v", test.j, err)
+			continue
+		}
+		v := formatPermissions(p)
+		if v != test.v {
+			t.Errorf("Expected %v, got %v", test.v, v)
+		}
+		pp := formatRawPermissions(p.Permissions(nil))
+		if pp != test.p {
+			t.Errorf("Expected %v, got %v", test.p, pp)
+		}
+	}
+}